Description: This function coarsens 2 CQUAD4 elements or 2 TRIA elements or a combination of a TRIA and a CQUAD4 into one element.
Usage:
1. DSI prompts the user to select 2, 3, or 4 elements:
2. Once desired elements have been selected:
• DONE coarsens the selected elements and prompts for more.
• ABORT or EXIT will exit this function.
The larger elements were created from groupings of four smaller elements.